Merge pull request #7 from distantcam/master

Iterator and Async support
try exclude async from build
more edge cases. more tests
add unsafe
fix build
exclude "2"
Fixed some of the LargeAssemblyTests.
Fixed issue with multiple outs not having correct IL.
Fixed issue with nullguards on generic T out parameters.
Added VB iterator support.
Fixed issue where multiple return guards would have incorrect branching addresses.
Merge pull request #8 from distantcam/fixes

Fixed the LargeAssemblyTest
bump version. make large tests optional
make error message explicit
Update README.md
rename to simple
make sample easier to gen
fix build
Update README.md
Update README.md